Closed Loop Residual (Zero Sequence) Current Transformer
Closed Loop Residual (Zero Sequence) Current Transformer Closed Loop Residual (Zero Sequence) Current Transformer Closed Loop Residual (Zero Sequence) Current Transformer Closed Loop Residual (Zero Sequence) Current Transformer Closed Loop Residual (Zero Sequence) Current Transformer

Closed Loop Residual (Zero Sequence) Current Transformer

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PRODUCT OVERVIEW
Residual current transformer for leakage current measurement of cable lines. The product is simple in structure and flexible in application. According to the cable specifications used in the main circuit, there are various core diameters corresponding to it. The main circuit current includes 63A~2000A. At the same time, it meets the requirements of balanced characteristics, and the unbalanced current output is better than 30mA, 10mA, and 5mA. The product adopts high-quality high-conductivity magnetic core and advanced process technology, which can meet the technical requirements of different precisions such as 0.2, 0.5, and 1.0, and has high reliability. This series of products meet the requirements of GB 14287.2-2014 and GB 13955-2005.
Product Features

Flexible output mode, socket or lead output;

A variety of core hole diameter options, the hole diameter is from φ12mm to φ260mm;

Casting with epoxy resin, good stability;

Adopt high magnetic permeability nickel steel or nanocrystalline magnetic core, with good linearity and high sensitivity;

Excellent balance characteristics, with strong anti-electromagnetic interference ability.

Scope of Application
Suitable for motor protection, electromagnetic relay protection device, microcomputer protection device; electrical fire monitoring, fire leakage system, low current grounding system.
Product Parameters
Electric
Performance
Parameters
Operating Temperature -40℃~+70℃ Relative Humidity ≤90%
Voltage Level 0.4/0.66/0.72kV Linear Range 5%~120%
Rated Input Current (AC) 10mA~5A Working Frequency 45~1250Hz
Rated Output (AC) 0~1V or 0~5mA Medium Strength: 3000Vac/min
Accuracy Class 0.5、1.0、2.0 Insulation Resistance

>500 M Ohms/500Vdc

Mechanical
Structure
Parameters
Shell Material PBT/PC Flame Retardant Grade 94-V0 Output Method Socket or Shielded Sheathed Wire
Iron Core Material Nickel Steel or Ultra Microcrystalline construction plan Base installation bolts are fixed
Sealing and Filling Epoxy Resin Environmental Requirements Meet RoHS
Model Interpretation
Typical Value of Main Products
Model NO. Input current rated Value
AC
Rated Continuous Thermal Current
AC
Common Transformation Ratio Accuracy Class Secondary Load(Ohms) Dimensions(mm)
ApertureD other size
TR21125B 10mA~5A 10A 1000:1
2000:1
0.2,0.5 ≤200 25 L-W-H-J-A1-A2
80-22-69.5-68-5.2-8
TR21126B 10mA~5A 10A 1000:1
2000:1
0.2,0.5 ≤500 45 L-W-H-J-A1-A2
120-33-101.5-98-5.2-8.5
TR21127B 10mA~5A 10A 1000:1
2000:1
0.2,0.5 ≤500 55 L-W-H-J-A1-A2
150-35-126-126-5.2-12
TR2174B 10mA~5A 10A 1000:1
2000:1
0.2,0.5 ≤500 35 L-W-H-J-A1-A2
100-30-90-83.5-5.2-9.5
TR21313B 10mA~5A 10A 1000:1
2000:1
0.2,0.5 ≤500 32 L-W-H-J-A1-A2
91-28-70-80-5.5-7.5
TR21314B 10mA~5A 10A 1000:1
2000:1
0.2,0.5 ≤500 45 L-W-H-J-A1-A2
104-28-83-93-5.5-7.5
TR21315B 10mA~5A 10A 1000:1
2000:1
0.2,0.5 ≤500 65 L-W-H-J-A1-A2
126-28-105-115-5.5-7.5
TR21316B 10mA~5A 10A 1000:1
2000:1
0.2,0.5 ≤500 80 L-W-H-J-A1-A2
143-28-122-132-5.5-7.5
TR21317B 10mA~5A 10A 1000:1
2000:1
0.2,0.5,1.0 ≤500 105 L-W-H-J-A1-A2
172-28-151-161-5.5-7.5
TR21117B 10mA~5A 10A 1000:1
2000:1
0.2,0.5,1.0 ≤500 72 L-W-H-J-A1-A2
175-42-150-150-6.2-13

Remarks: Customers can customize parameters according to system requirements.

Outline Structure Diagram(Unit:mm)

We are a manufacturer has export qualification and experience.

instrument type at least 100pcs ;others by 1 -5 pcs;

T/T;L/C;

Instrument transformer 20 thousand pcs ;current transformer 12 thousand pcs ;voltage transformer 11 thousand pcs.

We have a R&D team for new product design. Successful cases and in continued cooperation. Discussion among both sides ➡general specification ensure➡structure drawing ➡original sample ➡electrical

Standard Carton Export fumigatin-free tray Tray Film Edge fixing strip Vacuum packaging acceptable Customize size acceptable
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Contact Us

Tel:+86-25-84152563

Fax:+86-25-52146294

Email:export@hbtianrui.com

Address:Head Office: No.8 Chuangye Avenue, Economic Development Zone, Tianmen City, Hubei Province, China (Zip Code: 431700) Nanjing Office: Building 23, Baijiahu Science and Technology Industrial Park, No.2 Qingshuiting West Road, Jiangning Economic Development Zone, Nanjing City, Jiangsu Province,China (Zip Code:211106)

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